Fix slight scroll behavior issue

Session/Conversations/ConversationVC.swift

@@ -334,7 +334,11 @@ final class ConversationVC : BaseVC, ConversationViewModelDelegate, OWSConversat
                 case .insert:
                     // Perform inserts before updates
                     self.messagesTableView.insertRows(at: [ IndexPath(row: Int(update.newIndex), section: 0) ], with: .fade)
-                    shouldScrollToBottom = (self.lastPageTop - self.messagesTableView.contentOffset.y) <= 0
+                    if update.viewItem?.interaction is TSOutgoingMessage {
+                        shouldScrollToBottom = true
+                    } else {
+                        shouldScrollToBottom = (self.lastPageTop - self.messagesTableView.contentOffset.y) <= 0
+                    }
                 case .update:
                     self.messagesTableView.reloadRows(at: [ IndexPath(row: Int(update.oldIndex), section: 0) ], with: .fade)
                     shouldScrollToBottom = (self.lastPageTop - self.messagesTableView.contentOffset.y) <= 0